Rename "register" -> "subscribe" in the Push Messaging code.

content/shell/browser/layout_test/layout_test_push_messaging_service.cc

Index: content/shell/browser/layout_test/layout_test_push_messaging_service.cc
diff --git a/content/shell/browser/layout_test/layout_test_push_messaging_service.cc b/content/shell/browser/layout_test/layout_test_push_messaging_service.cc
index 5f0b0ec6edbce31b8cc541a36ddfa100da77c796..3922ee55da0112d8ec287bc36c21b84ab21241c5 100644
--- a/content/shell/browser/layout_test/layout_test_push_messaging_service.cc
+++ b/content/shell/browser/layout_test/layout_test_push_messaging_service.cc
@@ -42,30 +42,30 @@ GURL LayoutTestPushMessagingService::GetPushEndpoint() {
   return GURL("https://example.com/LayoutTestEndpoint");
 }
 
-void LayoutTestPushMessagingService::RegisterFromDocument(
+void LayoutTestPushMessagingService::SubscribeFromDocument(
     const GURL& requesting_origin,
     int64 service_worker_registration_id,
     const std::string& sender_id,
     int renderer_id,
     int render_frame_id,
     bool user_visible,
-    const PushMessagingService::RegisterCallback& callback) {
-  RegisterFromWorker(requesting_origin, service_worker_registration_id,
-                     sender_id, user_visible, callback);
+    const PushMessagingService::SubscribeCallback& callback) {
+  SubscribeFromWorker(requesting_origin, service_worker_registration_id,
+                      sender_id, user_visible, callback);
 }
 
-void LayoutTestPushMessagingService::RegisterFromWorker(
+void LayoutTestPushMessagingService::SubscribeFromWorker(
     const GURL& requesting_origin,
     int64 service_worker_registration_id,
     const std::string& sender_id,
     bool user_visible,
-    const PushMessagingService::RegisterCallback& callback) {
+    const PushMessagingService::SubscribeCallback& callback) {
   if (GetPermissionStatus(requesting_origin, requesting_origin, user_visible) ==
       blink::WebPushPermissionStatusGranted) {
     callback.Run("layoutTestRegistrationId",
-                 PUSH_REGISTRATION_STATUS_SUCCESS_FROM_PUSH_SERVICE);
+                 PUSH_SUBSCRIPTION_STATUS_SUCCESS_FROM_PUSH_SERVICE);
   } else {
-    callback.Run("registration_id", PUSH_REGISTRATION_STATUS_PERMISSION_DENIED);
+    callback.Run("registration_id", PUSH_SUBSCRIPTION_STATUS_PERMISSION_DENIED);
   }
 }
 
@@ -82,12 +82,12 @@ LayoutTestPushMessagingService::GetPermissionStatus(
                             embedding_origin));
 }
 
-void LayoutTestPushMessagingService::Unregister(
+void LayoutTestPushMessagingService::Unsubscribe(
     const GURL& requesting_origin,
     int64 service_worker_registration_id,
     const std::string& sender_id,
-    const UnregisterCallback& callback) {
-  callback.Run(PUSH_UNREGISTRATION_STATUS_SUCCESS_UNREGISTERED);
+    const UnsubscribeCallback& callback) {
+  callback.Run(PUSH_UNSUBSCRIPTION_STATUS_SUCCESS_UNSUBSCRIBED);
 }
 
 }  // namespace content